Dingtai manufactures Hyundai sprockets as critical undercarriage components, transferring final drive torque to the track chain for reliable crawler excavator propulsion.
We operate factory-direct production lines and supply comprehensive OEM manufacturing services, ensuring exact fit and consistent material quality for global clients.
This sprocket resists abrasive wear and tooth breakage, minimizing unplanned downtime on demanding job sites and extending service intervals under high-load operation.
Dingtai has over 20 years of heavy machinery manufacturing experience, supported by ISO9001 and SGS certifications that verify quality management and material compliance.
We use premium 35MnB alloy steel and deep induction quenching to harden tooth profiles, delivering high surface hardness without sacrificing core toughness.
Core Selling Points
- Premium 35MnB Material: Forged from 35MnB alloy steel, our Hyundai sprockets offer high tensile strength and impact resistance under extreme excavator workloads.
- Deep Quenching/Heat Treatment: Induction-hardened tooth profiles achieve optimal HRC hardness, extending wear life and reducing replacement frequency in abrasive ground conditions.
- Global Brand Compatibility: Engineered to match Hyundai OEM part numbers and pitch dimensions, ensuring direct installation on R-series excavators without modification.
- 100% QC Inspection: Every sprocket undergoes dimensional checks, hardness testing, and surface inspection before packing, guaranteeing zero-defect delivery for procurement professionals.
Our catalog of Hyundai sprockets includes various specifications, fully compatible with Hyundai excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Mn2 alloy steel forging |
| Hardness (HRC) | Tooth surface 50-55 HRC, core 22-28 HRC |
| Manufacturing Process | Die forging, CNC machining, induction hardening |
| Certification | ISO9001, SGS material report |
| Warranty | 12 months or 2,000 working hours |
2. OEM & Customization
We match OEM drawings, custom bolt patterns, and pitch diameters, producing Hyundai sprockets to strict dimensional tolerances and requested part numbers.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Excavator | Hyundai | R55-9, R80-7, R110-7, R150LC-9, R210LC-9, R220LC-9, R300LC-9 |
| Crawler Excavator | Hyundai | R260LC-9, R290LC-9, R320LC-9, R335LC-9, R360LC-9, R450LC-9, R480LC-9 |
4. Delivery & Logistics
Dingtai ships from factory warehouses with flexible MOQ and reliable ocean/land freight. Factory-direct pricing supports urgent aftermarket and scheduled fleet maintenance orders.
Technical Features
Sprocket teeth are induction hardened to 50–55 HRC while the forged hub remains ductile, reducing tooth fracture under shock loads.
Precision CNC pitch circle machining ensures even track chain engagement, preventing localized wear and reducing vibration during high-speed travel.
35MnB steel offers an optimal balance of hardenability and core strength, extending service life in abrasive mining and earthmoving conditions.
Applications
- Mining operations
- Road construction
- Quarrying and aggregate
- Demolition and site clearing
- Heavy earthmoving and infrastructure
- Forestry and material handling
Frequently Asked Questions
Are these sprockets genuine Hyundai parts?
No, they are aftermarket replacement sprockets manufactured by Dingtai to match Hyundai OEM dimensions and material specifications.
What is the minimum order quantity?
MOQ is flexible, typically one piece for stock models; larger quantities may be required for custom OEM production runs.
How long does delivery take?
Stock sprockets ship within 7–15 days after deposit. Custom production generally requires 25–45 days depending on quantity and machining complexity.
What is the heat treatment depth?
Induction hardening typically achieves 4–8 mm effective case depth on tooth flanks, depending on part number and material specification.
Do you offer warranty?
Yes, standard warranty is 12 months or 2,000 working hours against manufacturing defects under normal operating conditions.
Can you match Hyundai part numbers?
Yes, provide the OEM part number or drawing, and we will cross-reference and produce an exact compatible replacement.
Do you provide samples?
Sample availability depends on stock. For custom parts, we can produce samples before mass production after tooling confirmation.
Maintenance Guide
- Inspect sprocket tooth wear every 250 hours; replace if wear exceeds 3–5 mm or tooth profile becomes sharp.
- Clean hub mating surfaces before installation and torque mounting bolts to Hyundai OEM specifications using calibrated tools.
- Check track tension after sprocket replacement; over-tightening accelerates sprocket and chain wear.
- Replace severely worn sprockets together with track chains to prevent accelerated wear on new components.
- Grease final drive housing seals regularly and monitor for oil leaks that can contaminate the sprocket mounting area.